I have been taking Wellbutrin generic 75mg for 5 days. Today...W...

I have been taking Wellbutrin generic 75mg for 5 days. Today...WOW!! I feel like I did 10 lines of cocaine. I feel so speedy and upbeat. I don't have any other bad side effects. I notice at night, I feel the need to stretch out my legs because I feel agitated. SO far so good. I think this stuff is a lot better then the SSRI's. I had horrible side effects and suicidal thoughts. My only curiousity is, why would my DR. put me on this if I have anxiety and not depression? Weird. I have an appointment with him today and I think I want to stay on this dose and see how it works for me. I don't want this Dr shrinking my brain. LOL I'm really scared about drinking on this.